Carriage-feed for phonograph-machines.



To all whom it ,may concern:

State of New useful Improvement in Carriage-Feeds for Be it k'iiown' th'at' I, JULIUS 'RoEvEn, ofthe city of New York-have invented a new and Phonograph-Machines, of which the following is a full, clear, and exact description.

isused for working a reproducer and its carwith which the blade'is connected.

riage backward and forward with relation to a record. In machines'of this type, a screw having threads of opposite pitch is used, and a blade is generally arranged to follow the screw and transmit motion to the carriage 'tofore in structures of this lind, there has been a difficulty because of the fact that the blade or its connected mechanisms would some times catch a little, and every little catch or imperfect movement is transmitted to the reproducer, or at leastaifects the easy movement of the reproducer so that the tone quality of the instrumentis injured.

' The object of my invention is to remedy this difficulty and produce an attachment which will be sufficiently rigid to cause a positive feed of the reproducer carriage, but which will also be sufficiently elastic and yielding to ad apt itself to any slight imperfections of the screw or any imperfect movements of any of the mechanism. In other words, my invention is intended to construct the screw connection of the feed so that it will absolutely follow the thread of the screw at a uniform rate, and without any halts in the movement.

With these ends in View, my invention consists of certain features of construction and combinations of parts which will be hereinafter described and claimed.

Reference is tobe had to the accompanying drawing forming a part of this specification, in which similar reference characters indicate. corresponding parts in all the views.

'Figurel is a broken plan view of a phonographmachine provided with my improvements, and Fig. 2 is asectional elevation thereof with the feed connection shown partly in longitudinal section.

I have shown my improvement in connection with a feed screw 10, which is only shown threaded for a part of the way, but this screw lies parallel with the record of the tlii i roatsa t me? i Specification of Letters Patent.

Application filed June 1907- Serial No, 378.062-

York, county of Kings, and

Here- I V cinema-asst.mmaosogm aa fim rammed Feb. 2: 1908.

threads of opposite pitch. The screw shaft 10 is mounted on a horizontal frame .11,

is supported-0n apost 12, and the frame affords a support for the sliding carriage 13, which carries the reproducer 14, .and my invention lies in the connection between this carriage 13 and the screw shaft 10. The immediate connection with the screw is by a blade 15, not dissimilar to blades heretofore used on machines of this character, but the blade is yieldingly supported'on a lunger 16, the latter being slotted verticafly as shown at 17, and, the blade is also provided thus it will be seen that the blade 15 can move in the slot 17, while it has also a bodily movement with the plunger 16, which latter is held in the casing 20, and'is backed by a spring 23, as shown. It will thus be seen that 1 do not rely merely on the resiliency of the blade 15, which should beQof spring material, or even on the resiliency of the blade and spring 23, but I get a flexible movement of the blade with relation to its sup ort, which is also spring pressed and the lade is very sensitive and will follow the thread of the screw at all times.

The plunger 16 .has a shank 21 which extends through the outer end of the casing 20,

nuts 22, by means of which the plunger can be adjusted and locked and the tension of the spring 23 regulated. The casing can be connected with the carriage 13 in any convenient way, but I have shown it so cured to a post 24 which is fastened to the carriage.

t The mechanism shown at 25 at the right stylus of the reproducer, and has nothing to do with this present invention, therefore it is not described in detail.

It will be seen that the connection between the carriage and the screw is extremely flexible and yet sufficiently positive, and it will be understood that the means for supporting the plunger 16 and connecting it with the carriage, can be varied considerably if desired, without affecting the principle of the invention, though I claim the peculiar support and arrangementof the plunger.

Having thus fully described my invention,

and is screw threaded so as to receive the 'machine which is not here shown, and has which can be of any approved type, and this;

with a slot 18 which receives a pin 19, and g hand of the carriage is for regulating the claim as new and desire to-secure by'Let ters Patent:-

1. Inia machine bf the kind deseribed; the

combination with the feed screwland carridge, of a spring pressed support on the carr'iage, and a blade yielding-1y mounted on the support and arranged to connect with the screw. 4

2. The combinatlon with the feed screw and carriage, of a support yieldingly con -nectedwith the carriage, and a blade mount- .ed on the support so; as to have a limited movement in" relation thereto, said blade being arranged alsoto engage the thread of 3. The combination with thel' eedscrew andthe carriage, of a sletted supper ti 'ieldedin the slut of the. support and having'a limited movement in the said slot.

4. The eo'r'nbination with tl'i'e feedscrew and the earliagefofa easing,- a spring screw. I

' p JULIUS ROEVER. Witnesses: 1

. WARREN P. HUTGHINSON;

- FRAN L. STUBBs I .ingly mounted on the carriage, and lade to engage thescrew, said blade being mount- 

